i am chinese ,My English is not good. The problem is described as follows:

i published the web site,but not successful.i closed all pages. and never open ssms。

but ,error ：
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v12.0\Web\Mic rosoft.Web.Publishing.targets(2987,5): Error : Copying file App_Data\PlanetWrox.mdf to C:\Users\Administrator\AppData\Local\Temp\WebSiteP ublish\site-1804239788\obj\Debug\Package\PackageTmp\App_Data\P lanetWrox.mdf failed. The process cannot access the file 'App_Data\PlanetWrox.mdf' because it is being used by another process.

then i restarted my computer,but still published failed. i never use this mdf file by ssms,but show it always be used.

thank you，best wishes from your chinese fans.
viery

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I shutdown the sqlserver service，then，successed。
Thank you for writing such a good book！